Exam: GRE (Verbal)

Definition: A toxic protein that comes from the seeds of the castor bean plant, often used in scientific research.

Example: Ricin is highly dangerous and can be lethal if ingested or inhaled.

Definition: A health condition caused by not having enough vitamin D or calcium, leading to weak bones and poor growth, especially in children.

Example: Rickets can lead to serious health problems if not treated early.

Definition: A type of very small bacteria that are carried by parasites like ticks and fleas, which can cause diseases such as typhus and Rocky Mountain spotted fever in humans.

Example: Rickettsia are known to be transmitted by ticks and can lead to serious illnesses.

Definition: Connected to a type of bacteria known as rickettsias, which can cause diseases in humans and animals.

Example: The doctor diagnosed the patient with a rickettsial infection after reviewing the symptoms.

Definition: A wide, often unnatural smile or grimace, usually showing teeth, that can indicate surprise or distress.

Example: The actor's face froze in a rictus of horror as the scene unfolded.

Definition: The act of getting rid of something that is unwanted or unpleasant.

Example: After cleaning out the garage, I felt a great sense of riddance from all the clutter.

Definition: Having many holes or gaps, often in a way that causes damage or weakness.

Example: The old wall was riddled with cracks and holes.

Definition: To have pierced or filled with holes, often used in a figurative sense to describe something that is full of problems or difficulties.

Example: The old tire was riddled with punctures after driving over sharp objects.

Definition: Words or actions that make fun of someone or something in a way that shows contempt or scorn.

Example: The comedian's jokes were filled with ridicule, making the audience laugh at the absurdity of the situation.

Definition: To make fun of someone or something in a way that shows contempt or scorn.

Example: The comedian used his routine to ridicule the absurdities of everyday life.

Definition: A person who makes fun of someone or something in a mocking way.

Example: The ridiculer made jokes at his friend's expense during the party.

Definition: Describing something done in a way that makes fun of or mocks someone or something.

Example: The ridiculing comments made her feel embarrassed in front of her friends.

Definition: To make fun of someone or something in a mocking or scornful way.

Example: The comedian was ridiculing the politician's speech during the show.